230447947 has 2 divisors, whose sum is σ = 230447948. Its totient is φ = 230447946.

The previous prime is 230447929. The next prime is 230447953. The reversal of 230447947 is 749744032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230447947 - 2²³ = 222059339 is a prime.

It is not a weakly prime, because it can be changed into another prime (230447927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115223973 + 115223974.

It is an arithmetic number, because the mean of its divisors is an integer number (115223974).

Almost surely, 2^230447947 is an apocalyptic number.

230447947 is a deficient number, since it is larger than the sum of its proper divisors (1).

230447947 is an equidigital number, since it uses as much as digits as its factorization.

230447947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 230447947 is about 15180.5120796368. The cubic root of 230447947 is about 613.0900687041.

The spelling of 230447947 in words is "two hundred thirty million, four hundred forty-seven thousand, nine hundred forty-seven".